<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card>
      <!-- 搜索添加区 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryI.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userchange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showedit(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserbyid(scope.row.id)"
            ></el-button>
            <!-- 角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryI.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryI.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="dialogVisible" width="50%" @close="addclose">
      <!-- 内容主体 -->
      <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="ruleForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="ruleForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="ruleForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="ruleForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="adduser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editdialogVisible" width="50%" @close="editclosed">
      <el-form :model="editform" :rules="editformrules" ref="editformref" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editform.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editform.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editform.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editdialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="edituserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配权限"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前用户:{{userInfo.username}}</p>
        <p>当前角色:{{userInfo.role_name}}</p>
        <p>
          分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 邮箱验证规则
    var checkEmail = (rule, value, callback) => {
      // 验证邮箱正则
      const regEmail = /^\w+@[a-z0-9]+\.[a-z]{2,4}$/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return callback()
      }
      callback(new Error('请输入正确邮箱'))
    }
    //  验证手机号
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^1([38][0-9]|4[579]|5[0-3,5-9]|6[6]|7[0135678]|9[89])\d{8}$/
      if (regMobile.test(value)) {
        // 合法的手机
        return callback()
      }
      callback(new Error('请输入正确手机'))
    }
    return {
      // 获取用户列表参数
      queryI: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制对话框的显示隐藏
      dialogVisible: false,
      // 添加用户表单数据
      ruleForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单验证规则
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 18, message: '长度在 6 到 18 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制修改对话框的显示隐藏
      editdialogVisible: false,
      // 查询用户信息对象
      editform: {},
      // 修改表单验证规则
      editformrules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制分配权限对话框显示隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      rolesList: [],
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryI
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表数据失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变事件
    handleSizeChange(newSize) {
      this.queryI.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变事件
    handleCurrentChange(newPage) {
      this.queryI.pagenum = newPage
      this.getUserList()
    },
    async userchange(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户对话框关闭事件
    addclose() {
      this.$refs.ruleForm.resetFields()
    },
    // 点击按钮添加用户
    adduser() {
      this.$refs.ruleForm.validate(async valid => {
        if (!valid) return
        // 可以发起添加用户请求
        const { data: res } = await this.$http.post('users', this.ruleForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // 隐藏添加用户对话框
        this.dialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 展示用户修改对话框
    async showedit(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户数据失败')
      }
      this.editform = res.data
      this.editdialogVisible = true
    },
    // 监听修改用户对话框关闭事件
    editclosed() {
      this.$refs.editformref.resetFields()
    },
    // 修改用户信息递交
    edituserInfo() {
      this.$refs.editformref.validate(async valid => {
        if (!valid) return
        // 可以发起修改用户请求
        const { data: res } = await this.$http.put(
          'users/' + this.editform.id,
          { email: this.editform.email, mobile: this.editform.mobile }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('修改用户失败')
        }
        this.$message.success('修改用户成功')
        // 隐藏修改用户对话框
        this.editdialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 根据id删除用户
    async removeUserbyid(id) {
      // 弹框询问是否删除
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => {
        return err
      })
      if (confirmResult !== 'confirm') {
        return this.$message.info('以取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      this.getUserList()
    },
    // 展示分配角色对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    async saveRoleInfo() {
      if (!this.saveRoleInfo) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      )
      if (res.meta.status !== 200) {
        this.$message.error('更新角色失败')
      }
      this.$message.success('获取角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = ''
    }
  }
}
</script>

<style lang="less" scoped>
</style>
